Photocatalytic water treatment: solar energy applications

During the past 20 years research and development in the area of photocatalysis have been tremendous. One of the major applications of this technology is the degradation of organic pollutants in water and air streams which is considered as one of the so-called advanced oxidation processes. This over...

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Bibliographic Details
Published inSolar energy Vol. 77; no. 5; pp. 445 - 459
Main Author Bahnemann, Detlef
Format Journal Article
LanguageEnglish
Published New York Elsevier Ltd 01.01.2004
Pergamon Press Inc
Subjects
Photocatalysis
Solar energy
Water treatment
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Summary:During the past 20 years research and development in the area of photocatalysis have been tremendous. One of the major applications of this technology is the degradation of organic pollutants in water and air streams which is considered as one of the so-called advanced oxidation processes. This overview briefly describes the basic principles of photocatalysis, focusing in particular on important mechanistic and kinetic aspects as well as on some requirements for efficient photocatalysts. Since the comparatively high costs associated with the generation of light from electricity constitute one of the major drawbacks particularly for the rapid commercialization of photocatalytic water treatment units, solar photons have been utilized here with great success for many years now. Various solar reactors for the photocatalytic water treatment are described in detail in the main part of this review including the comparison of their overall performance.
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ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2004.03.031